#include <REGX52.H>

void Delay(int time);

void main(){
	
	while(1) {
		if (P3_1==0) {
			Delay(20);
			while(P3_1==0);
			Delay(20);
			
			P2_0=~P2_0;
		}
	}
	
}

void Delay(int time)		//@12.000MHz
{
	unsigned char i, j;

	while(time){
		i = 2;
		j = 239;
		do
		{
			while (--j);
		} while (--i);
		time--;
	}
}

